Datasheet > CAT1021PI-28TE13

CAT1021PI-28TE13

更新时间： 2024-11-06 22:28:23

品牌	Logo	应用领域
CATALYST		监控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
20页	149K
描述
Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CAT1021PI-28TE13 数据手册

CAT1021, CAT1022, CAT1023

Supervisory Circuits with I²C Serial 2k-bit CMOS EEPROM, Manual Reset

and Watchdog Timer

FEATURES

■ Precision power supply voltage monitor

— 5V, 3.3V and 3V systems

— Five threshold voltage options

■ Watchdog timer

■ Built-in inadvertent write protection

— WP pin (CAT1021)

■ 1,000,000 Program/Erase cycles

■ Manual reset input

■ Active high or low reset

— Valid reset guaranteed at V_CC= 1 V

■ 400kHz I²C bus

■ 100 year data retention

■ 8-pin DIP, SOIC, TSSOP, MSOP or TDFN

(3 x 3 mm foot-print) packages

— TDFN max height is 0.8mm

■ 3.0V to 5.5V operation

■ Industrial and extended temperature ranges

■ Low power CMOS technology

■ 16-Byte page write buffer

DESCRIPTION

The CAT1021, CAT1022 and CAT1023 are complete The power supply monitor and reset circuit protect memory

memory and supervisory solutions for microcontroller- and system controllers during power up/down and against

based systems. A 2k-bit serial EEPROM memory and a brownout conditions. Five reset threshold voltages support

system power supervisor with brown-out protection are 5V, 3.3V and 3V systems. If power supply voltages are out

integrated together in low power CMOS technology. of tolerance reset signals become active, preventing the

Memory interface is via a 400kHz I²C bus.

systemmicrocontroller, ASICorperipheralsfromoperating.

Reset signals become inactive typically 200 ms after the

supply voltage exceeds the reset threshold level. With both

activehighandlowresetsignals,interfacetomicrocontrollers

and other ICs is simple. In addition, the RESET pin or a

separate input, MR, can be used as an input for push-button

manual reset capability.

The CAT1021 and CAT1023 provide a precision V_CC

sense circuit and two open drain outputs: one (RESET)

drives high and the other (RESET) drives low whenever

V_CCfallsbelowtheresetthresholdvoltage.TheCAT1022

has only a RESET output and does not have a Write

Protect input. The CAT1021 also has a Write Protect

input (WP). Write operations are disabled if WP is The on-chip, 2k-bit EEPROM memory features a 16-byte

connected to a logic high.

page. In addition, hardware data protection is provided by a

V_CCsense circuit that prevents writes to memory whenever

V_CCfalls below the reset threshold or until V_CCreaches the

reset threshold during power up.

Allsupervisorshavea1.6secondwatchdogtimercircuit

that resets a system to a known state if software or a

hardware glitch halts or “hangs” the system. For the

CAT1021 and CAT1022, the watchdog timer monitors Available packages include an 8-pin DIP, 8-pin SOIC, 8-pin

theSDAsignal.TheCAT1023hasaseparatewatchdog TSSOP, 8-pin TDFN and 8-pin MSOP. The TDFN package

timer interrupt input pin, WDI.

thickness is 0.8mm maximum. TDFN footprint options are

3x3mm.

Doc No. 3009, Rev. K

Characteristics subject to change without notice

12 3 4 5 6 7...20

中文翻译

下载PDF

与CAT1021PI-28TE13相关器件

型号	品牌	获取价格	描述	数据表
CAT1021PI-30	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8
CAT1021PI-30TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021PI-42	CATALYST	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDIP8, PLASTIC, DIP-8
CAT1021PI-42	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8
CAT1021PI-42TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021PI-45	CATALYST	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDIP8, PLASTIC, DIP-8
CAT1021PI-45	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8
CAT1021PI-45TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
CAT1021RA-25TE13	ONSEMI	获取价格	IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, MSOP-8, Power Management Circuit
CAT1021RA-25TE13	CATALYST	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, MSOP-8

与CAT1021PI-28TE13相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

16
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

14
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

37
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

35

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT1021PI-28TE13

CAT1021PI-28TE13 数据手册

与CAT1021PI-28TE13相关器件

与CAT1021PI-28TE13相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT1021PI-28TE13

CAT1021PI-28TE13 数据手册

与CAT1021PI-28TE13相关器件

与CAT1021PI-28TE13相关文章

您还可以找

您在本页遇到什么问题？